romanticism

Short definition from Wiktionary

Noun

1. 1
   A romantic quality, spirit or action.

Proper noun

1. 1
   An artistic, literary, musical, and intellectual movement that originated in Europe towards the end of the 18th century, peaking from 1800 to 1850, characterized by its emphasis on emotion and individualism as well as glorification of all the past and nature, preferring the medieval rather than the classical.